Primer seating problem

[scattergun6]

I can only highlight and agree with everything others have stated above...excellent input. I have had lots of military-sourced brass (.45 mostly) with crimped primers.... I use a chamfering tool to cut and then swage with swaging dies.
Have occasionally wanted to kill a primer, mostly when I realize I have re-primed a split case...a few drops of oil into the case, crush it with pliers, and drop it in the trash.
I have found, with brass having tight primer pockets or primers that seem larger than normal causing difficult seating with the hand primer, it is better to re-prime on my RockChucker - seats deeper and doesn't damage the primer in any way.

 

[Lonesome Dove]

Chamber it and pull the trigger then decap.

 

[TexMex247]

I've popped new primers out with a dedicated de capping die. It's not as scary as it sounds. However, knowing you suspect a tight pocket I'm not sure I'd try it. Normally I'd agree with lonesome dove but if you have a high primer then I doubt you could even chamber the round. In your case, I might just toss that piece and swage all primer pockets before priming more of them.

 

[popper]

Oil doesn't 'kill' a primer. Just carefully decap with the universal and wear safety glasses. No big deal. The universal is not a closed space like a decapping pin in a sizing die so any 'gasses' will exit with a bang but no major damage.

 

[deemus]

Maybe difference is LR vs LP?

not sure if those are slightly different sizes. I’ve never worked with the 460. It’s possible calibers that large have crimped primers.

 

[TipBledsoe]

After several hours of water soaking I used the normal decamping/sizing die. The primer popped right out easy peasy - thankfully uneventful.
There was only the one primer, and the pocket obviously didn’t get prepped.
Thanks so much to you all for the advice!

 

[msharley]

Hey Tip,

Double check the depth of the primer pockets, after you pop the primers out...(use safety glasses whilst so doing)

Nephew told me that sometimes a 460 case is/was made for pistol primers (about .060" SHALLOW) instead of RIFLE...(he loads 460, for his Dad)...

The 460 should not have a crimp.

In 9mm, fag 40S&W, 45 acp and old school 38 Special (for handgun) there always exists a possibility for crimps in the primer pocket. The "brands" are usually: WRA, LC (followed by year), WRC...and a few others....for US Mil/Surp.

For modern ammo, CBC & Amerc brass...........plain SUCK...

You may? Want to get a LYMAN PRIMER POCKET UNIFORMER/FLASH HOLE UNIFORMER...

You only need do the primer pockets/flash holes one time....but saves untold grief down the line...(wasn't bad when primers were a penny/pop...but at $200/M? Much too pricey for mistakes)

Hope this helps..

Later, Mark

 

[msharley]

I was taught oil soaking the primer will render them useless.

Hey Baboon,

The sons & I tested that theory with 12ga hulls some time back.

Took about 1/2 dozen damaged hulls with primers...

Filled 1/2 full with a variety of oils/solvents...(no shot/wad or powder)

Let set for three weeks? (been a while)...

Stuck 'em in the 870 (if we could) or the Stevens 311 (S&S) if we had to.

EVERY ONE WENT BANG!

So...I'm a skeptic on the oil kills primers theory....

We did a variety of rifle & handgun as well....mixed results....(2/3? went bang? 3/4? went bang??)

ALL FACTORY MIL/SURP RIFLE PRIMERS (8mm/30-06/308, 762x54) went BANG...no matter how long soaked. (empty primed case) Same with US GI 45acp...pulled bullets (a real kicker as they are crimped and painted with asphaltum sealer)

Back to our regular programming...

Later, Mark

 

[baboon]

Hey Baboon,

The sons & I tested that theory with 12ga hulls some time back.

Took about 1/2 dozen damaged hulls with primers...

Filled 1/2 full with a variety of oils/solvents...(no shot/wad or powder)

Let set for three weeks? (been a while)...

Stuck 'em in the 870 (if we could) or the Stevens 311 (S&S) if we had to.

EVERY ONE WENT BANG!

So...I'm a skeptic on the oil kills primers theory....

We did a variety of rifle & handgun as well....mixed results....(2/3? went bang? 3/4? went bang??)

ALL FACTORY MIL/SURP RIFLE PRIMERS (8mm/30-06/308, 762x54) went BANG...no matter how long soaked. (empty primed case) Same with US GI 45acp...pulled bullets (a real kicker as they are crimped and painted with asphaltum sealer)

Back to our regular programming...

Later, Mark

 

[baboon]

I’m glad I never had to test the theory. 90 % of my reloading has been done on a RCBS Rockchucker. Never used anything to seat primers other then the priming tool on the press. It always worked fine for me. I like that I could feel a properly seated primer thru the press handle.

I bought a Dillon SDB from a friend and never liked much about it. I started reloading to make quality not quantity.